Reland "[MDL] Only build bypass rules for clients that use them"

This is a reland of commit b6f9ad85160292eb507658fce31fa37cb9ac80ee

Original change's description:
> [MDL] Only build bypass rules for clients that use them
>
> WebView clients don't need the bypass rules, so significant memory
> savings are gained by not creating them.
>
> Bug: 1511339
> Change-Id: I71df24f02fb0d2b2a9120bdd77caa85e436c9c1a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5145450
> Commit-Queue: Alex Kallam <aakallam@chromium.org>
> Reviewed-by: Victor Tan <victortan@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1243140}

Bug: 1511339
Change-Id: Ic9a5e01b1ea108cf188be1134bba935fb391fdf2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5171426
Commit-Queue: Alex Kallam <aakallam@chromium.org>
Reviewed-by: Victor Tan <victortan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1243512}